We found out this past summer after bloodwork from Duke came back that DS is not allergic to macadamia nuts.
To find peanut free ones, though, that's been a challenge.
But I did it, and DS enjoyed his first ever white chocolate chip and macadamia nut cookie ever Monday night.
Dole Plantation macadamias are peanut free as of this writing. They are shipped from Hawaii to Hamakua Macadamia Nut Company stateside (which only does Macadamia nuts) and then back to Hawaii.
I don't know about the chocolate there, but the nuts themselves have worked for DS.
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The mac nuts from the Mauna Loa company owned by Hershey are NOT peanut free. They start out in Hawaii but then are processed on the same equipment as peanuts in California before heading back to Hawaii .